I grew up in a very rural area in the Midwestern USA where some roads were made of dirt and where farmers fertilized their fields with manure. I'll never forget that smell!
Aww, I'm weird. I hate most "poo" smells (like any sane person) but I love when they spread the aged manure on the fields every spring. Its not a "good" smell, but it smells like easter and happy childhood to me.
I'm not a normal person when it comes to "poo" smells. I discovered when I inspected them that there are parts of the wastewater treatment plants that, IMO, smell good. I was inspecting the composting facility when they poured raw liquid sludge over the green waste and mixed it up. I was wearing a particulate filter, but raw sludge has a pungent odor which, for some odd reason, my nose interpreted as "sweet." The guy who works at the facility stared at me, shook his head, then said "You really are a country girl, aren't you?" I'm looking forward to watching them apply sludge to agricultural land to enrich it and reduce the need for fertilizers. I'm working with some new dry litter piggeries and I look forward to doing their post-construction inspections. In fact, in my office they say, "If it's poo, Midnight will handle it."